Anyone using Kopia (a deduplicating backup system) with drivepool?

[backup]

https://kopia.io/

https://kopia.io/docs/

 

I'm slowly squeezing "sniglets" from our NUC based storage system and wish to learn from others using Kopia. Believe it uses the Blake2 hash for everything.

I have successfully restored drives with Kopia by checking the "skip any errors" box, but have experienced some unwelcome problems when performing hash verifications of existing backups. So far at least, those problems have been traced to equipment deficiencies which I am addressing.

Deduplication saves a lot of space. So I'm using Kopia for backups more and more. Our previous system used a hash based equivalent to Rsync (https://bvckup2.com/kb/delta-copying).

I trust Bvckup more - but Kopia's design allows deduplication of multiple drives and pools.

[Shane]

As a general caution (I haven't tried kopia) be aware that some backup tools rely on fileid queries to identify files and unfortunately DrivePool's current implementation of fileid is flawed (primarily relevant is that files on a pool do not keep the same fileid between reboots and the resulting collision chance is very high). I would test thoroughly before committing.